Half to thomas dobbins



(No Model.)

B. P. SAMMONS.

AIR JET. No. 379,543. Patented Mar. 13, '1888.

N. PETERS. PimlD-Liihogphcr, Washingen. D. C

Ntra

BENJAMINE F. SAMMONS, OF CUNNINGHAM, MISSOURI, ASSIGNOR OF ONE- HALF TO THOMAS DOBBINS, OF SAME PLACE.

AIR-JET.

SPECIFICATION forming part of Letters Patent No. 379,543, dated March 13, 1888.

Application led June 13, 1887. Serial No. 241.209. (No model.)

To @ZZ whom, it may concern,.-

Be it known that I, BENJAMINE F. SAM- noNs, a citizen of the United States, residing at Cunningham, in the county of Ghariton and State of Missouri, have invented a new and useful Improvement in Air-Jets, of which the following is a specification.

My invention relates to animprovement in compressed-air pumps; and it consists in the peculiar construction and combination of devices that will be more fully set forth hereinafter, and particularly pointed out Ain the claims.

In the drawings, Figure l is a vertical sectional view ofa pump embodying my improvements. Fig. 2 is an enlarged detailed sectional view ofthe plunger. Fig. 3 is a detached perspective view oi' the clampingjaws and bolts.

A represents the pump-stock, which comprises a vertical pipe of suitable diameter, the upper end of which is open. 5

B representsasuction-pipe, which is coupled to the lower end of the pipe A by means of a T-coupling, G. The lower end ofthe couplingpipe is provided with a pointed strainer, D, adapted to stick in the sand or mud at the bottom of the well, so as to steady the pump.

E represents an upwardly-opening valve, arranged in the suction-pipe near the lower end thereof.

F represents a delivery-pipe, the diameter of which is considerably less than the diameter ofthe suction-pipe. The lower end of this delivery-pipe is connected to the coupling` C by a curved elbow, G. In coupling() is arranged a gravity-valve, H. The upper end of the delivery-pipe is closed by a cap, I, and from the delivery-pipe, at a suitable distance from its upper end, projects a spout, K.

L represents the plungerI or piston, which its in the stock A and has its lower portion provided with a leather packing-collar, LNI, which ts snugly in the bore of the stock. The upper portion of the plunger is reduced in diameter and is provided with a leather packing-collar, N, which is secured by an annular clamping-nut, O.

P represents a vertical bore or opening, which is made centrally in the plunger and extends from the lower end of the same to within a suitable distance of the upper end thereof, where it communicates with a series of air openings or inlets, R. The lower portion of the bore P is of less diameter than the upper portion thereof, and in the extreme lower end thereof is located a downwardly opening valve, S.

T represents a plunger-rod, which extends from the upper endof the plunger and projects above the upper end of the stock A, and is 6o adapted to be connected to au operating-lever,

which is not here shown, as it may be of any preferred construction.

U represents a clamp having a pair ofjaws which embrace opposite sides ofthe deliverypipe and of the pump-stock, andare clamped in position thereon by means of a clampingbolt, V, that extends through transverse aligned openings made in the centers of the jaws.

U represents a similar clamp having a pair of jaws at one. end which engage the deliverypipe at a distance above the clamp U, and is provided at the opposite extremity with an eye, U2, through which the plunger-rod extends, as clearly shown in Fig. l.

The operation of my invention is as follows:

The operator .first closes the mouth of the spout with one hand, and with the other he operates the plunger-rod, so as to cause the 8o plunger to reciprocate vertically in the pumpstock. During the major portion of each upstroke of the plunger air isprevented from loeing admitted by reason of the packing Nat the upper end of the plunger and consequently a S5 vacuum is formed in the lower portion of the pump-stock,and water is sucked into the same through the valve E. When the plunger reaches the upper limit oi its stroke, the packing N rises above the upper end ofthe puinpstock, and consequently the openingsR in the plunger become uncovered and air is drawn :into the pump-stock. On the descent ofthe plunger the valve S closes, and air in the pumpstock is forced downward on the column of water therein. At the succeeding upstroke of the plunger the valve E opens and the valve H closes, causing the water to rise in the pipe B to the elbow, and from thence up the pipe A to within a short distance of the plunger. rco

On the next downstroke of the plunger the valve E closes and the check-valve H opens, and the water in the lower portion of the pipe A, together with the air above the column of water, isi'orced upward through the deliverypipe F. After a few strokes of the plunger the water begins to dow from the spout K, as will be very readily understood.

A pump thus constructed can be operated with great ease and is adapted to raise water to a great height.

It will be readily understood that the water does not pass through the plunger, and consequently the pump may be advantageously employed for pumping water in which sand, mud, and other impurities are held in suspension, and the pump is also adapted for raising sand from the bedsof streams.

The size of the bore P iu the Aplunger and the diameter of the pipes A, B, and F must be ofcourse proportioned to tlie'height the water is to be elevated.

vHaving thus described my invention, I claiml. The combination of the pipe A, the pipe B, depending therefrom and having the valve E, the delivery-pipe F, communicating with the pipes Aand B and having the check-valve H, and the plunger Il, having the packing N at its upper end and adapted to reciprocate in the pipe A above the lower end of the delivery-pipe and provided with the downwardlyopening valve S and with openings leading from a point below packing N tosaid valve,

whereby air is compressed in thelower portion of the pipe A at each downstroke ofthe plunger, substantially as described.

2. The combination of the valved inlet-pipe or pum p-stock, the val ved discharge-pipe communicating therewith, andthe plunger adapted to reciprocate and fitting snugly in the inletpipe or stock above the juncture Aof the discharge-pipe, said plunger having the downwardly-opening valve S at its lower end, and the bore P,extending upward from said Valve and communicating with openings R near the upper end of the plunger, substantially as described. 'A

3. In combination with the delivery-pipe F, the pipe B, the pipe A, the plunger L in the pipe A, the valveH in pipe F, thevalve E in pipe B, the valve S, carried by the plunger, the series of air-openings R in the top ofthe plunger', the vertical bore or opening P, eX- tending from the valve S to the openings R, and the packing-collars M N around the Voutside of the plunger, the openings R being arranged betweenthe two collars M N, as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two Witnesses.

niark.

Vitnesses:

R. INI. HARDns'rY, D. B. HOWARD. 

